Well the suject is the queston. How do I replace the radiator?

 

Oh, I forgot to say its a 1976 chevy blazer. Thanks.

 

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On replacing your radiator. Drain the coolant, disconnect the upper and lower radiator hoses, disconnect the transmission cooler lines (if applicable), remove the upper radiator shroud/support, remove the radiator. You'll probably want to replace the upper and lower hoses as well as the thermostat while you've got the system open. This would also be a good time to evaluate the bearings in the waterpump. If they feel lose or like something is grinding inside, Installation of the new radiator is reverse of disassembly. You'll need to check the level of the transmission fluid if you disconnected the lines.